Pressure Gauge for Fire Sprinkler Systems – Model PFE3935R1R11Z

The LIFECO PFE3935R1R11Z Pressure Gauge is specially designed for reliable pressure monitoring in fire sprinkler systems. Suitable for both air and water media, it provides clear, accurate readings to support routine inspections, system testing, and maintenance.

The gauge features a 3.5-inch (90 mm) white aluminium dial with highly visible black and red markings. Its dual-scale display measures pressure from 0–300 psi and 0–20 bar, allowing readings to be taken quickly and easily. A corrosion-resistant black plastic case and threaded polycarbonate lens help protect the internal components in demanding fire protection environments.

For reliable operation, the gauge incorporates a phosphor bronze Bourdon tube, brass socket and movement, an aluminium pointer, and an internal pointer over-travel stop. It is designed for a maximum continuous working pressure of 75% of the full-scale value and can operate in ambient and process temperatures ranging from -40°C to 65°C (-40°F to 150°F).

The PFE3935R1R11Z complies with ASME B40.100, is CRN registered, UL Listed, and FM Approved. It also carries an IP52 enclosure rating and is supplied with a five-year warranty.

Key Features

• Specially designed for fire sprinkler systems
• Suitable for air and water media
• Dual-scale measurement: 0–300 psi and 0–20 bar
• Large 3.5-inch (90 mm) dial
• Corrosion-resistant case
• Clear black and red dial markings
• Internal pointer over-travel stop
• Bottom-mounted threaded connection
• Accuracy of ±3-2-3% of full scale
• Operating temperature from -40°C to 65°C
• IP52 enclosure rating
• ASME B40.100 compliant
• CRN registered
• UL Listed and FM Approved
• Five-year warranty

Applications

The LIFECO sprinkler pressure gauge is suitable for monitoring pressure in wet and dry fire sprinkler systems and other compatible air or water-based fire protection installations. Its durable construction, dual-scale display, and recognized approvals make it a dependable choice for fire protection system installation, inspection, and maintenance.